Time-calculator.



K. M. MORRISON.

TIME CALCULATOR.

`APPLIUATIQN FILED MAR. 5. 1913.

Patented Nov. 4, 1913.

K. M. MORRISON. TIME CALCULATOR.

APPLICATION FILED MAR. 5, 1913,

Patented Nov. 4, 1913.

wa/vra@ fam/.erw name/sow K. M. MORRISON.

TIME CALCULATOR.

APPLICATION FILED MAR. 5, 1913.

1,077,736, Patented Nov. 4, 1913.

3 SHEETS-SHEET 3.

Mec/f xnNNErn 1a.' monnrsou, or minne-Arens, malumore.

mncnncuna'ron.

specincauon of Letters raum fatented Nov. 4,1913.

App-mation mea 'march- 5, 1913. serial no. 752,144.

To 'all/whom it may concern.' i Be it known that I, KENNETH M. MonnisoN,of iMiniiea olis, county of Hennepin,

and, State of Minnesota, have invented ce1'- A tain new and usefulImprovements in Time` Calculators,."of whichthe'following is aspecification.

My invention relatesto machines for ascertaining the numberA of daysbetween two given dates and the. primaryl object of thev invention is toprovide adevice by means l o f whichA at a glance aperson can guickly!and easily ascertain the number -o Tdays from a certain date in onemonth to a datev in a subsequent month Avwithout any calculation oraddition whatever'.

A- further 'object is to provide ainachine by means of which the date onwhich a note drawn for a certain vlength of time can be ascertained at.a glance, and whether the note matured on. Sundayor a legal holiday.

A further object is to provide a date computing machine which may beutilized as a perpetual calendar.v Gther `objects ofthe invention willap- 'pear from the following detailed description.

yals

The invention consists generally in the constructions and combinations,-all'as hereinafte;` described and particularly pointed out in theclaims. I the accompanying drawings forming part of this specification,Figure l is a plan view of a` date computing. machine embodying myinvention, Fig. 2 is a longitudinal, sectional view of .the same,illustrating the -mechanism for shlfting thescomputing belt,

Fig. 3f is a detail view, showing the arrangey ment of iigureson thebelt and the opening in the adjustable.. plate through which. theseAfigures are visible, Fig."4 illustrates a section of the b elt',showing the longitudinal columns thereon, Fig. 5 is a view, showingmonth,'Figs; 89.11619' are detailviewsgshowthe outer plate in position,exposing seven of the columns iii the belt beneath, under they figures forcom u-ting the days between two iven dates, i'g. 6 is a similarview,showing the device adapted for computing days between two othergivendates, Fig. 7 is a detail' view, showingthe means -for in;Ydicating a. holiday 'on te stationary late bea-ring figuresrepresenting. the` days ,Q the ing the stationary transparent-plate-Withthe slotted papersheet beneath, on Awhich the figures. representingthe 'days ,of the ebelt, beneath month are placed, Figi l10 isla detail.view of one end of themachine, showing the range of "lateral adjustmentof the movable outer plate and belt in ,one direction, Fig 11 is' asimilar view, showing the adjustment 'ofv this .plate andcoinputing beltin the oppo site direction, 'Fig l2 1s la' similar view,

showing a portion of the transparent plate with the slotted paperstripmounted thereon, .Figjl isV a similar view, showing aplate having aportion of its surface transparent-, tlirogh which the vfigures on themay' be read and a portion opaque and 'aring thegures representing thedays 'of the month. v.

In' the drawing, 2 presents a suitable casing, preferably of metal,having an open top to reeeive-a lass plate 3 whichrests upon stops`4:and 1s voverlapped on two sides and onelend preferably by stationaryflanges 5 and 6, whileat the other Iend a removable flange 7 is rovidedwhich will allow the insertion of t e plate into the casing and hold itsecurely therein. A plate 8 of suitable material, preferably Celluloid,has -ends adapted to slide between the flanges 5 -and 7 and the ends ofthe glassplate, and is` provided with a series of holes .9 toreceivescrews l0 which, when removed, allow the transverse adjustment ofthe plate8 back a longitudinal opening 11 therein and at'the top andbottom of this opening I arrange letters forming abbreviations of thedays of the week. The letters composing the.

abbreviations are preferably vertically arranged, there being, ofcourse,seven verti- "cal rows across the middle portion of the plate aj-ttheends of` the opening 1l, as indicated in Fig. l. The upper row ofabbrevia- 'tions isused for setting the machine and' in the computationsfor each year, while the lower row at the bottom of the opening in theplate 8 is used only in computing the days from a .certain date in oneyear to a date in the next year, .which will begin-on a day 'one daylater than the preceding year. On each side of the opening l1 .theplate8 is'iiivided intospaces designated for the names of themonthsof theyear, therebeing twelve spacesl .on-each side of the ope`n,

`ing 11, with the names' of the months lindicated therein, beginning vatthe top of the spaces and extending to the bottom thereof.

0n the undersideof the glass plate 3 I .providea sheet 1241iz suitablematerial, prefand forth across the casing.. This plate has i lmonth tobe set beneath the letters representing that day at the top of thesheet. As indicated in the figures, there are siX adjustments of theplate 8 from side to side, to allow the plate to be adjusted foraccurate computation, regardless of the day on which the first month ofthe year begins.

`Within the casing 2 is a frame l'having rolls 1G and 17 journaledtherein, around which an endless computing belt 18 passes.

The roll 17 is adapted to slide in slots 19 in said frame and is pressedoutwardly by springs 2O which operate to push the roll 17 outwardly andtension the belt 18 and insure sufficient friction between it and saidrolls to cealed.

cause its endwise movement when the rolls are revolved. The spindle 21of the roll 16 is provided with a finger grip 22 by means of which theroll -16 is revolved to move the computi-ng'A roll forward and back,lengthwise of the machine. Beneath the frame 15 is a shaft 23 havingpinions 24 secured thereon in transverse guideways 25. Rack bars 26 arepreferably mounted on the underside of theframe l5 and. mesh with theteeth ofthe pinions. 'The shaft 23 has la finger grip 27. When thisshaft is revolved' the frame 15 will be moved bodily back and forthacross the casing of the 'machine 4-to i shift the position of thecomputing beltwith respect to the stationarv glass .platefand themovable month and day :indicating plate 8.

Referring now to Figs. 3 and 4't1ie puting belt 18 is shown providedWithfa series of longitudinal columns 28. There are thirteen'of thesecolumns,an arbitrary number, and the plate 8 is capable of transverseadjustment over six of these columns on each side of the center col-umnandthe open- 4ing 11'in the plate 8 is of sufficient width to exposeseven of these columns on the computing belt at one time,'while theremaining six columns 0f the computing belt are con- The computing beltis provided with figures representing the days of the year fromv 1 to365, and 'these figures are duplicated upon opposite sides of the middlecolumn of the, belt, and each horizontal row of figures on the beltrunning transversely thereof will read consecutively and the figures ineach horizontaly row reading from the top to the bottom ofthe machinewill be seven units greater than the figures in the same columnrespectively of the horizontal row above. The duplication of the figuresin the horizontal rows is represented in F ig. 4, in which it is shownthat the figures of the last six columns on the computing belt of eachhorizontal row are repeated in thejfirst six columns of the rowbeneath'. This duplication of the 'figures n the computing belt allowsfor its adjustnient back and forth across the machine to. adapt it forthe variations or changes in the days ofthe week on .which thesuccessive years begin and the adjustment of the plate 8 of the'maehineallows the operator to' easily and quickly-adjust the machine at thebeginning of the year, setting the abbreviation of a'certain dayopposite the figure' representing the first day of the-month on thestationary glass plate beneath.

As' indicated in Fig. a, there are two groups of numerals,`rea dingtransversely of the computing belt, running from 1 to 365.

.The groups I will designate generally by reference letters A and B.lThe beginning of the first groupv is represented in the lower part 0fthe figure and the ending of the first group is represented at the topof the figure, thisarrangement being brought about by the passing of thecomputing belt around the operating rollers. For convenience in the useof the machine, I prefer to inclose the numerals 365, representing thelast 'day of the year,-of the first group A, in a circle, though anyarbitrary mark might be placed in the column adjacent to these figuresfor the same purpose. Then, in setting the machine for computation, thenumerals 365, inclosed in the circle, are adjusted opposite` the numeralrepresenting the day of the-month fromwhich it isfdesired4 to make the4computation.

l' II Fi 31 have illustratedl the device adfijpus'ted"forcomputing thedays in the yearl l11913, in Iwhichthe vmoll-'tirf--January begins .onWednesdayfiniis indicated by the adj usteet 8 opposite the stationary.A

ment of the As figure 1 onthe glass plate. JWhen this has been done thecomputing belt is moved until` the gures 9865, vinclosed in the circle,stand opposite the letters representing Wednesday, the first day of'January, 1913. The machine is then set for the proper computation ofdays between January 1st and any subsequent date in that year. Forinstance, referring to Fig. l, tbc number o'f days between Jalfarv 1stand the eleventh of May is desired. The figures 365 in thecircle being`opposite the numeral representing the first day of January, by 1min.'-ning down the vertical left hand 'column Itire operator will find thenumerals represent-.nig the eleventh of ,May andabove these numerals thefigures 130, the nuniber'of days from January 1st to May 11th. Byshifting the notarse B belt 'and moving the gures 365 shown in' thecircle opposite any other day' in any other month of the year, thenumber of days from that,d'ate to a subsequent date in the same'yearcanbe easily and'quickly ascer-l tained.

In Fig. 5 the numeral 365,1 inclos'ed in the circle or brackets, isshown set 'opposite the numeral 7, representing the seventh of December'oa certain yea-r, and it isdesired. to ascertain' the number ofd'aysfbetween that .date and the fifteenthV of February of the nextyear. The computation will be carried through the'- second group B, andby referringtothe' lower row' of letters onthe plate. 8, We will findthat the fifteenth of February falls on Sunday,I and thatit is daysfrom' the .precedingsventh' of December. This lower row of abbreviationsis only used when the computation is from 'a date in one year toa dlatein the 'following year. lVhen the clerk figures this computation for anote due the fifteenth of February,he will at once ascertain that thisdate 'falls on' Sunday and that the note matures the da'y before, or theday after, as the `statute may require. .In the same manner, if the noteis dated the seventhof December and runs ninety days, he can at a glanceascertain that it will` fall due on Saturday, the seventh of March. l ySuppose it is 'desired to ascertain the number of days between April12thand Septems ber 21st of the me year. (See Fig. 6.) `The computing bel ismoved until the figures 365 inc-losed in the bracket-s 'or circle are`oppositethe numeral 12, 'representing the twelfth of April. Then,running dovvn the column to the figure representing September 21st inthe same yea-r, the operator will see at" a glance that there are 162:lays between the two`dates. v

. As Aindicated in Fig. 7, I prefer to designate holidays by somedistinguishingmark, such as a circle around the figure representing thatdate on the stationary plate, so that in making a computation, theclerk, if he :finds a note falls 4due on that date, can indicate thematurity as of the preceding, day,cr lthe day after, if the State lawrequiresl 'In Figs. 8 .and 9' different adjustments of the transverselymovable plate 8 are s'h'oWn, which maybe utilized to adaptthe machinefor lea-p year dates. For instance, referring` to Fig. 8, February is'indicated as having 28 days, the rst of March beginning' on Thursday,vbut if the year should happen to be a leap'year, then the operatorwould move the plate 8 one notch toward the left, as shownin 9, bringingthe numeral representing the first dayof March Abeneath the heading forFriday, and then for all Leclroning from a data prior to the firstofM'arch to a date -following the-first `of March .for that year, theoperator -would add Que day'to his total pins 10. and sliding the 'platetransversely on fthe glass plate until vthe abbreviation of the ,dayofthe'week at the top of the plate 8 is opposite the numeralrepresenting the first day of January of` a certain year. This plate 8is only adjusted once for each year. -'The computi-ng belt is then movedtransversely until the' numeral inclos'ed in the brackets,

orsome arbitrary mark in thespace With the numerals 3,65,"7 isoppositethe day of the 4month from whiclrcomputation is desired,

and the longitudinal as Well as the transverse movement of the computingbelt allows this numeral Withthe arbitrary mark asso-l ciated therewithto be moved not only trans versely of the opening 'through' the pla-teY8, but'also lengthwise thereof to permit computation from any dateinany month of the year'for .which the machine is set.

In Figs. 3,' 8, 9,-10 11 have shown a calendar sheet 3 provided withcalendar numerals arranged in thirteen columns run- Yning lengthwiseofthe sheet, corresponding 'to the number and arrangement of columns onthe computing table belt, and these cal! endar numerals are repeatedupon each side of the middle column oft-he series .in the same manner'as the numerals representing the days of the-Week are repeated on thebelt. For instance, the calendar z*numerals will run consecutively `fromroW'to row-on each side of the middle column, each `nu- ,meralof a rowbeing' seven units greater than the' corresponding numeral of therowabove on each side of the middle column. The plate 8 will normallyconceall all 'but seven of these columns, the calendar dates 'exposedthrough the opening in the plate i representing the days'of the monthvof the current year, and when the plate is adjusted transverselyadditional'coluinns of calendarv dates will be exposed and acorresponding number of columns previously exposed'will be concealed toadapt the machine for com putation in another year,

In Fig. 12 the glass plate' S is shown provided with a paper sheet gluedor otherwise rfastened to the underside of the plate, with.

'or' the month, between which bars trans-r parent areas are provided inthe L glass ranged beneath said calendar sheet and hav- -ing numeralsrepresenting the days of the Sli days' from a date represented by acalendar vside of said central column being repeated through which theiigures on thecomputing belt may be seen.

, l claim asl my inventionz` l. A time calculator comprising a calendarsheet bearing numerals representing the days of the month arranged inparallel weekly rows spaced apart, and acomputing table movabletransversely of said rows of calendar figures and having a' series ofnumerals running consecutively in parallel weekly rows from l to 365 andvisible between the rows of calendar numerals, said computing tableindicating the number of numeral to a date represented by a subsequent,correspondinglylocated calendar numeral in the same year.

2. A time calculator comprising a calendar sheet having numeralsarranged in parallel rows spaced apart and representing the days of themonth and designated -for the days of the week, and a computing tablearyear alsoarranged in parallel rows, visible through the spaces betweensaid calendar rows of numerals, said computing table being movablelengthwise and transversely. of the rows'of calendar numerals andindicating, when a character is set opposite a cal'- endar date, thenumber of,days from that calendar date to any subsequent date in'thesame year.

3. A time calculator comprising a calendar sheet bearing numeralsrepresenting the days of the month arranged in parallel, weekly,transverse rows spaced apart, and designated for the days of the week,and a computing table having numerals also arranged in parallel,transverse rows visible .through the space between said calendar rows,the table numerals running consecutively from l to 365 upon oppositesides of a central, longitudinal column in said table, the numerals inthe last six columns on one in the firstsix columnso-f the nexttransverse row beneath on the other side of said central column, saidtable being movable transversely and lengthwise beneath said 'calendarsheet and indicating when amark thereon'is set opposite a calendarnumeral from which computation is to be made the number of days fromsaid calendar numeral to any subsequent calendar date in the same year.

4. A time calculator comprising a calendarf sheet bearing numeralsrepresenting the days of the month arranged in parallel weekly rowsspaced apart, and a computing table arranged beneath said calendar sheetand having a series of numerals thereon, also arranged in parallel rowsspaced apart" representing the days of the year and are ranged inthirteen columns running lengthwise of said table, the numerals of thelast `six columns in a row being repeated inthe first six columns of thenext row beneath, and the numerals running consecutively from l to 365on each side of the middle column of theseries, said computin tablebeing movable transversely and le beneath said calendar sheet andindicating when a mark thereon is adjusted opposite ya calendar date thenumber of days from that date to any subsequent calendar date of thesame year. v

5. A time calculator comprising a calendar sheet bearing numeralsrepresenting the days .of the month arranged in parallel weekly rows,spaced' apart, and a computing table movable transversely and lengthwiseof said rows of calendar numerals and having numerals also arranged inparallel rows, visible between the rows of calendar numerals andrepresenting the days of the current year and the days of the nextsucceeding year, said computing table, when a character is set oppositea calendar date of the current year, indicating the number of days fromsaid calendar date in the current year to a calendar date of the nextyear.

6. A time calculator comprising a calendar sheet bearing numeralsrepresenting the days of the month arranged in parallel weekly rows,spaced apart, and designated at one end forthe days of the week of thecurrent year and at the other end for the days of the week of the nextyear, and af'eomputing table belt movable transversely and lengthwise ofsaid rowsof calendar numerals and having two groups of numeralsindicating,

respectively, the days of the current and the next year and visiblebetween the rows foi calendar numerals, said table belt, when adjustedwith `an arbitrary mark thereon oposite a calendar date of the currentyear lndicating `the number of days between that calendar date and acalendar date of the next year, the ayof the week of said last namedcalendar date bein tering designating tie days of the week for 'the nextyear.

7. A time calculator comprising a computing table belt and means formoving the same longitudinally and transversely said belt having aseries of numerals in parallel transverse rows thereon representing thedays of the year, a stationary calendar-sheet indicated by theletarranged above said belt and having numeri l als in paralleltransverse rows representing the days of thefmont-h, said belt numeralsbeing visible between said parallel rows of calendar numerals, and aplate arranged over said calendar sheet and having a longitudinalopening therein 'through which said calendar sheet numerals and beltnumerals and visible between, the rows of calendair,I

n umerals, .saidv computing table numera are visible, said platehavingthe names of the months arranged lengthwise of said opening andthe names of the days of the week arranged trai'isversely of saidopening.

S. )L time calculator comprising a computing table and means foradjusting it lengthwise and transversely, said table having numeralsrepresenting the days of the year arranged in parallel, transverse rowsand in thirteen columns running lengthwise ot said table, the numeralsin the last six columns of a row being repeated in the irst six columnsof the row next beneath and each numeral of a row being seven unitsgreater than thev corresponding numeral Iof the row next above, acalendar sheet arranged over said table and having numerals thereonrepresenting the days of the month arranged in parallel, transverse rowsspaced apart and in a series of thirteen columns, in the same manner assaid table numerals are arranged, the numerals of said Comput ing tablebeing visible between the rows of calendar numerals, a plate arrangedover said calendar sheet and having an opening therein through whichsaid calendar sheet numerals and said computing table numerals arevisible, said plate being marked to indicate the names of the months andthe Ydays of the week and adjustable transversely of said calendar sheetand normally exposing seven columns of said calendar numerals throughsaid opening.

9. A time calculator comprising a computing table belt and means foradiusting it lengthwise and transversely, said belt having numeralsthereon representing the days of the year arranged in paralleltransverse rows and in thirteen columns, running lengthwise of saidbelt. the numerals in the last columns of a row being repeated in thefirst six columns of the row next beneath and each numeral et a rowbeing seven units greater than the corresponding numeral of the row nextabove, a calendar sheet having numerals thereon representing the days ofthe month arranged in parallel, transverse rows, spaced apart, theniimerals of said computing belt being visible between the rows ofcalendar numerals,l a plate arranged over said calendar sheet and havingan opening therein through which said calendar sheet numerals and 'saidcomputing belt numerals are visible, said plate being marked to indicatethe names of the months and the days of the week, said belt, whenadjusted beneath said calendar sheet, indicating the number of days fromany calendar date in a year to any subsquent palendar date of the sameyear.

In Witness whereof, I have hereunto set my hand this 27th day ofFebruary 1913.

KENNETH M. MORRSON.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

